ive been doing quite well in trees problems graphs problems, where i can picture things up dp is the thing where i get stuck the most today div2 d2 was quite easy for me i had all the intuition what i need to do just was scared and i couldnt picturize things and got stuck couldnt implement then when i saw tutorial it was almost everything i was trying to do on paper but was unable to state transition and all any good yt playlist or books or anything?



